/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { createSelector, Selector } from 'reselect';
import { AppStore } from '@app/classes/models/store';
import { LogField, AuditLogsFieldSet, AuditLogsFieldsSetRootKeys } from '@app/classes/object';
import { ResponseRootProperties } from '@app/services/storage/audit-logs-fields.service';

export const selectAuditLogsFieldState = (state: AppStore): AuditLogsFieldSet => state.auditLogsFields;

export const selectDefaultAuditLogsFields = createSelector(
  selectAuditLogsFieldState,
  (root: AuditLogsFieldSet): LogField[] => root && <LogField[]>root[AuditLogsFieldsSetRootKeys.DEFAULTS]
);

export const createAuditLogsFieldSetSelector = (componentName?: string) => {
  return createSelector(
    selectAuditLogsFieldState,
    (root: AuditLogsFieldSet): LogField[] => {
      const overrides = root[ResponseRootProperties.OVERRIDES];
      return (componentName && overrides && overrides[componentName]) || root[ResponseRootProperties.DEFAULTS];
    }
  );
}

export const createAuditLogsFieldLabelSelector = (
  fieldName: string,
  componentName?: string
): Selector<AppStore, string> => createSelector(
  createAuditLogsFieldSetSelector(componentName),
  (fields: LogField[]): string => {
    const field: LogField = fields.find((nextField: LogField) => nextField.name === fieldName);
    return field ? field.label : fieldName;
  }
);
